Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751209AbVK1IcE (ORCPT ); Mon, 28 Nov 2005 03:32:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751243AbVK1IcE (ORCPT ); Mon, 28 Nov 2005 03:32:04 -0500 Received: from mail.ocs.com.au ([202.147.117.210]:51907 "EHLO mail.ocs.com.au") by vger.kernel.org with ESMTP id S1751209AbVK1IcD (ORCPT ); Mon, 28 Nov 2005 03:32:03 -0500 X-Mailer: exmh version 2.6.3_20040314 03/14/2004 with nmh-1.1 From: Keith Owens To: Andi Kleen Cc: Andrew Morton , paulmck@us.ibm.com, greg@kroah.com, sekharan@us.ibm.com, linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net, Douglas_Warzecha@dell.com, Abhay_Salunke@dell.com, achim_leubner@adaptec.com, dmp@davidmpye.dyndns.org Subject: Re: [Lse-tech] Re: [PATCH 0/7]: Fix for unsafe notifier chain In-reply-to: Your message of "Mon, 28 Nov 2005 05:59:22 BST." <20051128045922.GK20775@brahms.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 28 Nov 2005 19:31:36 +1100 Message-ID: <4544.1133166696@ocs3.ocs.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 739 Lines: 20 On Mon, 28 Nov 2005 05:59:22 +0100, Andi Kleen wrote: >On Sun, Nov 27, 2005 at 08:57:45PM -0800, Andrew Morton wrote: >> "Paul E. McKenney" wrote: >> > >> > Any options I missed? >> >> Stop using the notifier chains from NMI context - it's too hard. Use a >> fixed-size array in the NMI code instead. > >Or just don't unregister. That is what I did for the debug notifiers. Unregister is not the only problem. Chain traversal races with register as well. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/